SPY vs YORW: Correlation
How closely do SPDR S&P 500 ETF Trust (SPY) and The York Water Company (YORW) trade together? Their weekly returns over three years give a correlation of 0.12, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and YORW?
Across a 3-year window, the weekly returns of SPY and YORW correlate at 0.12, weak. The past 12 months show a weaker link (-0.07) than the 3-year average (0.12). Stretching to 5 years gives 0.22, with an annualized covariance of 36.8 %².
Among the 4755 assets we track against SPY, YORW ranks #3977 by 3-year correlation. On 12-month performance SPY holds a 9.7-point edge, +20.6% against +10.9%.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
SPY vs YORW: side by side
| SPY (SPDR S&P 500 ETF Trust) | YORW (The York Water Company) | |
|---|---|---|
| 1-year return | +20.6% | +10.9% |
| 5-year return | +82.4% | -26.0% |
| Volatility (ann.) | 14.5% | 20.5% |
| Beta vs S&P 500 | 1.00 | 0.18 |
| Max drawdown (3Y) | -18.8% | -26.4% |
| Market cap | – | $0.5B |
| P/E (trailing) | – | 21.2 |
| Dividend yield | 1.01% | 2.64% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
On the fund side, SPY sits in the Large Blend category at State Street Investment Management, with $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | SPY | YORW |
|---|---|---|
| 2022 | -18.2% | -7.9% |
| 2023 | +26.2% | -12.4% |
| 2024 | +24.9% | -13.2% |
| 2025 | +17.7% | +0.1% |
| 2026 | +13.7% | +7.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and YORW good diversifiers for each other?
By historical standards, yes. A correlation of 0.12 means the two rarely move for the same reasons.
FAQ
What is the correlation between SPY and YORW?
Using weekly returns as of 2026-08-27: 0.12 over 3 years, with -0.07 over the last year and 0.22 over 5 years.
Is YORW a good diversifier for SPY?
By historical standards, yes. A correlation of 0.12 means the two rarely move for the same reasons.
What does a correlation of 0.12 mean?
On the −1 to +1 scale, 0.12 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: SPY correlations · YORW correlations
